Production Equipments of Precision Welded Pipe

In the process of three typical production methods, the main pipe equipment, pipe forming unit cold drawing machine, cold rolling unit and cold reducing unit, has a decisive role in the formation of precision welded pipe. But the equipment types of precision pipe pipe is much, the range of that is big, and technical performance requirements are different. If we want to meet the quality requirements of precision welded pipe, we must be suitable configuration.

1. On the manufacturing stage of precision welded pipe:

Strip preparation - Desktop rack or chain conveyor
Uncoiler - Cantilever or Double Cone Uncoiler
Straightening of steel - Roller leveling machine
Shear - oblique cutting shears
Butt welding machine
Live sets of materials - live sets (box, cage, spiral, tunnel, etc.)
Milling edge planing edge - milling edge planing machine
Forming - continuous forming machine (roll, row roll, FF forming, etc.)
Welding - high frequency induction or contact heating welding equipment
Clear burrs - inside and outside deburring devices (both inside and outside)
Weld heat treatment - IF linear induction heating device (or steel pipe heat treatment)
Cooling - air cooling and cooling water jacket
Sizing - continuous sizing machine (roll)
Nondestructive testing - Ultrasonic or eddy current flaw detection
Flying shear - flying shear (stamping, rolling, sawing, milling, etc.)
Straightening - Roller Straightening Machine (5 ~ 7 Roll)
Cut off the flat head - cutting machine and the head machine and step into the bench
Eddy current testing - eddy current flaw detector (instead of hydraulic pressure test)
Water pressure test - hydraulic pressure test machine (single or multi-type)

2. On the cold drawn and cold rolling stage of precision welded pipe:

Rolling head - rolling head or hammer machine
Intermediate heat treatment - continuous roll annealing furnace
Pickling, cleaning - pickling, washing tanks and flushing facilities
Phosphating, saponification - phosphating, saponification tank
Cold drawing - cold drawing unit
Lubrication - Lubricating pond
Cold Rolling - Roller Cold Rolling Mill
Heat treatment of the finished product - Protection atmosphere Heat treatment furnace (chamber or roll)

3. Cold reduction stage of precision welded pipe:

Cold reduction - cold reduction unit (two or three roller type cold reduction unit frame according to the total amount of deformation configuration)

As the precision welded pipe varieties, specifications, technical requirements are different, the production process and processes are not the same, some processes take a long time, some processes less time, so the production process prone to uneven, and the need for a buffer link, In order to make the smooth progress of production, to minimize the weak links, about 90% of the precision welded pipe products have to go through the middle of the warehouse to balance production capacity.

The Characteristics and Use of Precision Welded Pipe

Precision welded pipe is a broad concept, according to the different use requirement, there are many different personalized quality requirements. Precision welded pipe is the further improved result that based on the general welded steel pipe, is the fine products in the welded steel pipe products. Prime Steel Pipe as the comprehensive steel pipe manufacturer and exporter from China, has been committed to provides high-quality steel pipe for sale, if you have any requirement of precision welded pipe, please contact us.

Key Features of Precision Welded Pipe

Precision welded pipe has a fine geometric size, thickness of the transverse wall is uniform, shape of steel pipe is good, oval is small, the quality of welding line is good and burrs are small, the outer surface is smooth. Steel pipe after welding line heat treatment or protective atmosphere heat treatment, can achieve the effect of surface without oxygen, steady mechanical properties and metallurgical uniform. Its production costs are much lower than similar seamless steel pipe, and it can be directly or after a small amount of processing used for some equipment, which will reduce equipment processing costs.

Use of Precision Welded Pipe

Precision welded pipe is mainly used in chemical, textile, machinery, instrumentation, aviation, automotive and other fields. Such as cars, motorcycles on the buffer, reducer, condenser, tank pipe, drive shaft, silencer, control shaft, thrust brake tube, hydraulic cylinder, cylinder, jack, all kinds of conveyor rollers, belt roller, Textile printing and dyeing roller, textile fiber machine with draft pipe, hydraulic support tube, deep well pump pipe, all kinds of mechanical light pipe, electric heater outer tube and household appliances, etc..